Commission-free currency exchange throughout London In association with Great exchange rates on ALL currencies All major credit cards accepted Voucher accepted at all of the following bureaux de change: TTT Foreign Exchange Corporation 369a Oxford Street, W1C 2JW 291 Oxford Street, W1C 2DS 35 Piccadilly, W1J 0DW 4 Sloane Street, SW1X 9LA 113 Gloucester Road, SW7 4ST Knightsbridge Station, SW3 1ED The Money Corporation 1 Brompton Road, SW3 1ED 18 Piccadilly, W1J 0DF   Minimoney 17-19 Cockspur Street, SW1Y 5BL Moneycorp Gatwick Airport Stansted Airport Southampton Airport ALL branches are open extended hours 7 days a week, with some open 24 hours.